This is Nathan Rockwood's latest iteration of his GameMaster's Apprentice decks. This one, as you can see on the title, is focused on the Fantasy genre. Additionally, this time he has added ONE more generator in the form of a random image inside the dice rolls. In short, these products are the foundations of my dungeon mastering and solo playing: it only takes me (literally) 20 seconds to create new quests, describe new scenes, NPCs... And it keeps the game fresh, which is something I like as a GM (being surprised by the game). The only bad thing about them is that the shipping cost to the EU is too high, but that is a DrivethruRPG problem, not Nathan's. Overall, any Game Master who likes to improvise things (and I'd say that everyone has to do it sometimes) should get these. If you're running a different plethora of genres, you can just get the base one. But if you only run D&D, Pathfinder and such, do yourself a favor, get this deck (pro tip: if you get it on pdf, you can load it an app like Cardwarden on iPad and use it on the go) and enjoy all of its random glory.